ImageEn, unit iewic

IEWICEnumerateCodecs

IEWICEnumerateCodecs


Declaration


function IEWICEnumerateCodecs(ComponentTypes: IE_WICComponentType; Callback: TIEWICEnumerateCodecsCallBack): Integer;


Description


Detects all the available WIC decoders and encoders on the system.

ComponentTypes must be either IE_WICDecoder or IE_WICEncoder.

Result will be -1 if an error occured, otherwise the number of codecs found.


Examples


// Declare our call-back event
procedure TForm1.EnumerateCodecsCallBack(const FriendlyName: WideString; const GUID: TGuid; const Extensions: WideString; const Version: WideString; const Author: WideString);
begin
  memo1.Lines.Add( '[' + FriendlyName + ']' );
  memo1.Lines.Add( 'Version: ' + Version );
  memo1.Lines.Add( 'Author: ' + Author );
  memo1.Lines.Add( 'Extensions: ' + Extensions );
  memo1.Lines.Add( 'GUID: ' + GUIDToString( GUID ));
  memo1.Lines.Add( '' );
end;

// Output list of WIC Decoders
procedure TForm1.btnListDecoders(Sender: TObject);
begin
  memo1.Clear;
  IEWicEnumerateCodecs( IE_WICDecoder, EnumerateCodecsCallBack );
end;

// Output list of WIC Encoders
procedure TForm1.btnListEncoders(Sender: TObject);
begin
  memo1.Clear;
  IEWicEnumerateCodecs( IE_WICEncoder, EnumerateCodecsCallBack );
end;

// Count only...
decoderCount := IEWicEnumerateCodecs( IE_WICDecoder, nil );


See Also


- IEWICFormatSupported
- DecoderInfo
- EncoderInfo